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sos_filter: Fix validate_section_index() check
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A section_idx equal to max_sections is also invalid.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2025-06-11 17:59:02 -04:00
parent 5666b88c69
commit f54b7b9376
1 changed files with 3 additions and 2 deletions
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5
src/sos_filter.c
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@ -108,7 +108,7 @@ sos_filter_oid_lookup(uint8_t oid)
static void
validate_section_index(struct sos_filter *sf, uint8_t section_idx)
{
if (section_idx > sf->max_sections)
if (section_idx >= sf->max_sections)
shutdown("Filter section index larger than max_sections");
}
@ -154,7 +154,8 @@ command_sos_filter_activate(uint32_t *args)
{
struct sos_filter *sf = sos_filter_oid_lookup(args[0]);
uint8_t n_sections = args[1];
validate_section_index(sf, n_sections);
if (n_sections > sf->max_sections)
shutdown("Filter section index larger than max_sections");
sf->n_sections = n_sections;
const uint8_t coeff_int_bits = args[2];
sf->coeff_frac_bits = (31 - coeff_int_bits);